Compact mission configurable mm-wave spectrometer based on a channel drop filter

Evgenya I. Smirnova; Aimee G. Bailey; Lawrence M. Earley; Sergey S. Kurennoy

doi:10.1117/12.718657

4 May 2007 Compact mission configurable mm-wave spectrometer based on a channel drop filter

Evgenya I. Smirnova, Aimee G. Bailey, Lawrence M. Earley, Sergey S. Kurennoy

Proceedings Volume 6549, Terahertz for Military and Security Applications V; 65490O (2007) https://doi.org/10.1117/12.718657
Event: Defense and Security Symposium, 2007, Orlando, Florida, United States

Abstract

We have developed a novel mm-wave spectrometer based on a Photonic Band Gap (PBG) channel-drop filter (CDF). There is a need for a compact wide-band versatile and configurable mm-wave spectrometer for applications in mm-wave communications and remote sensing. CDFs present us with a unique means for filtering frequencies at mm-waves. CDF is a novel concept allowing filtering the frequency spectra and channeling selected frequencies into separate waveguides through a PBG structure. We have designed a spectrometer with a CDF working in the frequency range of 90-130 GHz. The CDF can be connected to any type of antenna and detector. A large ground based outdoor antenna can be used for remote sensing with radars. A compact antenna can be used for indoor or space applications. The signal in the waveguide channels can be measured with any type of sensor such as a cooled bolometer or a room temperature mm-wave diode. The size of the spectrometer is under 5 inches by 5 inches and just a quarter of an inch in thick. Multiple filters can be stacked together to construct a mission specific package. We propose to construct the filter with silicon rods on a 100mm silicon wafer using MEMS technology. We will then evaluate the filter at our mm-wave laboratory to demonstrate the channeling of frequencies in a proof-of-principle experiment at 100GHz. This technology will work well for frequencies from 60GHz to 1000GHz.

Citation Download Citation

Evgenya I. Smirnova, Aimee G. Bailey, Lawrence M. Earley, and Sergey S. Kurennoy "Compact mission configurable mm-wave spectrometer based on a channel drop filter", Proc. SPIE 6549, Terahertz for Military and Security Applications V, 65490O (4 May 2007); https://doi.org/10.1117/12.718657

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